The electromagnetic field around us.We
can't see them with the naked eye, but this does not mean they can not be used
as an energy source. Scientists created an equipment which can charge AA-battery
by making use of electromagnetic field produced from vehicles and electronic
products.
The amount of energy collected by the
Electromagnetic Harvester is still a major problem temporarily. A "finger"
battery can support a day of electricity consumption of electronic equipment.
According to Dennis Siegel, students from
the University of the Arts, in order to obtain power, Electromagnetic Harvester
must be closed to the computer, mobile phone or into the subway. Once the
device reaches a sufficiently strong magnetic field area, the LED lamp of the
device will emit red light, that is charging.
(artical resource:SCIRP)
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